Heli-Coil R1185-5 R-Pack Free-Running Helical Inserts, 5/16-18 UNC, 1-1/2D Length, 12 Pack

Heli-Coil R1185-5 R-Pack Free-Running Helical Inserts, 5/16-18 UNC, 1-1/2D Length, 12 Pack

• Heli-Coil R1185-5 is a free-running, tanged helical insert pack used to restore or reinforce stripped 5/16-18 UNC internal threads in metal. These 18-8 stainless steel inserts provide durable replacement threads and are supplied as a 12 pack for maintenance, repair, and production support.
• Features:
  • 5/16-18 UNC insert size restores damaged 5/16-18 internal threads to the original fastener size.
  • Free-running, tanged design supports standard installation and tang break-off after installation.
  • 18-8 stainless steel construction helps resist corrosion in service and repair environments.
  • 1-1/2D insert length provides thread engagement suited to common repair depth requirements for this size.
  • Designed to be installed in a correctly prepared hole using a 5/16-18 STI tap and size Q drill per Heli-Coil installation practice.
• Specifications:
  • Manufacturer: Stanley Engineered Fastening (Heli-Coil)
  • Part Number: HER1185-5
  • MPN: R1185-5
  • UPC: 025964100115
  • Product Name: R-Pack Free-Running Helical Inserts
  • Alternate Part Numbers / Cross References: R1185-5, HELR1185-5
  • Category: Thread Repair
  • Subcategory: Helical Inserts
  • Product Type / Function: Free-running wire thread insert
  • Thread Size: 5/16-18
  • Thread Type: UNC
  • Thread Direction: Right hand
  • Insert Type: Free-running, tanged
  • Insert Material: 18-8 stainless steel
  • Insert Length: 15/32 inch
  • Outside Diameter: 0.39 inch
  • Drill Bit Size: Q
  • Compatible Tap Size: 5/16-18 STI
  • Quantity: 12 identical inserts per pack
  • System Compatibility / Application: Designed to repair and reinforce 5/16-18 UNC internal threads by installing a free-running helical insert after drilling with size Q and tapping with a 5/16-18 STI tap.
• The R-Pack Free-Running Helical Inserts can also be referred to as wire thread insert, helical insert, thread repair insert, 5/16-18 thread insert, and stainless steel Heli-Coil insert.

Stanley Engineered Fastening manufactures engineered fastening and assembly solutions, including the Heli-Coil line of wire thread inserts and installation tooling used for thread reinforcement and thread repair in industrial maintenance, manufacturing, and service applications.

Q: What thread size does HER1185-5 repair?
A: It is designed to restore or reinforce internal threads to 5/16-18 UNC by installing a matching free-running helical insert.

Q: How many inserts are included?
A: The pack contains 12 identical free-running, tanged inserts.

Q: What drill and tap sizes are specified for installation?
A: The listed drill size is Q, and the listed compatible tap is a 5/16-18 STI tap used to prepare the hole before insert installation.